共 26 条
- [1] BELTRAMI E., 1911, OPERE MAT, V3, P349
- [2] Beltrami E., 1911, OPERE MATH, V3, p[115, 349]
- [4] BERGMAN S, 1947, T AM MATH SOC, V62, P452
- [7] Bergman S., 1940, DUKE MATH J, V6, P537, DOI 10.1215/S0012-7094-40-00643-3
- [9] Bers L., 1943, J Q APPL MATH, V1, P168, DOI [10.1090/qam/8556, DOI 10.1090/QAM/8556]